Chemistry I - First term final exam
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Multiple Choice – Scantron
150 questions
You will be provided a periodic table, which contains the element names on the front and
the polyatomic ion list on the back.
You will be allowed ONE 3” X 5” note card and a calculator.
You should know the basics (terms & basic facts) about:
organic chemistry
analytical chemistry
physical chemistry
inorganic chemistry
biochemistry
hypothesis
theory
law
scientific method
mass
weight
volume
physical change
chemical change
mixture
element
compound
molecule
heterogeneous
homogeneous
states of matter
Dalton’s Atomic Theory
group
period
Kelvin
celcius
precision
accuracy
proton
neutron
electron
isotope
atomic number
mass number
average atomic mass
frequency
wavelength
photons
Aufbau principle
Pauli exclusion principle
Ground state
Excited state
Energy level
Orbitals
Electron spin
Dimitri Mendeleev
Glenn Seaborg
nonmetals
metalloids
noble gases
alkali metals (group IA)
alkaline earth metals (group IIA)
halogens (group VIIA)
ionization energy
atomic radius
electronegativity
ion
atom
molecule
compound
diatomic elements
alpha particles
beta particles
gamma ray
Half-life
fission
fusion
covalent bond
ionic bond
VSEPR*
octet rule
Problems
You should be able to work basic problems dealing with:
physical or chemical change
element names/symbols
metric prefixes (centi-, milli-, kilo-)
Celcius to Kelvin conversion OR Kelvin to Celcius
significant digits
scientific notation
density
unit conversions (inches to cm, seconds to hours, etc)
english to metric conversions for length, volume, mass (2.54cm = 1 inch, 0.946 L = 1 quart, 454 g
= 1 pound)
balance nuclear reaction equations
count protons, neutrons, and electrons in isotopes
electron configurations (including ions)
Nomenclature {naming compounds, writing formulas}
Lewis structures*
Molecular Geometry*
Half-life
Chemistry 1 Term 1 exam sample problems by topic
physical or chemical change
boiling water
burning wood
melting aluminum
separating sand from water
element names/symbols
know element symbols from handout during 1st week of class
metric prefixes (centi-, milli-, kilo-)
Convert 54 mm to m.
Convert 9.2 X 10-5 cL to L.
Convert 5.12 kg to g.
Celcius to Kelvin conversion OR Kelvin to Celcius
Convert 23 degrees C to Kelvin
Convert 50 K to degrees C
significant digits
Round 8.9456 to 3 significant digits.
Round 513431 to 2 significant digits.
Add 4.324 + 345.1, and round your answer properly.
Multiply 32.56 X 103, and round your answer properly.
scientific notation
Express 3712 in scientific notation.
Express 0.0377561 in scientific notation.
density
What is the volume of a solid with a density of 7.8 g/mL and a mass of 11.8 g ?
unit conversions (inches to cm, seconds to hours, etc) english to metric conversions for length, volume,
mass (2.54cm = 1 inch, 0.946 L = 1 quart, 454 g = 1 pound)
Convert 54 hours to seconds
Convert 84 oz to grams
Convert 1234 m to inches
Convert 2.3 quarts to Liters
Counting protons, neutrons, and electrons
Symbol
201
80
60
28
Protons
Neutrons
Electrons
Charge
4
47
5
61
0
0
16
13
17
15
47
-2
+3
-1
Hg
35
Ni
80
34
Se -2
16
8
O -2
balance nuclear reaction equations
aluminum-26 undergoes positron emission
potassium-40 undergoes beta decay (electron)
uranium-238 undergoes alpha decay
electron configurations
Write the electron configuration for C.
Write the electron configuration for Cr.
Write the shorthand notation for Bi.
Lewis structures & Molecular Geometry *
Draw the Lewis structure and state the molecular geometry for H 2O.
NOMENCLATURE {naming compounds, writing formulas}
Write the formula for each of the following compounds:
a. Sulfur hexafluoride
b. Lithium nitride
c. Chromium (III) carbonate
d. Tin (II) chloride
e. Ammonium acetate
f. Mercury (I) chloride
g. Potassium bromate
h. Hydrosulfuric acid
i. Chloric acid
j. Sulfurous acid
Name each of the following compounds.
a. CuSO4
b. AlF3
c. HI
d. NO
e. H2Se (aq)
f. HNO3
g. HNO2
h. NaHSO4
Half-life
Tritium (H-3) is a radioactive isotope of hydrogen with a half-life of 12.3 years. How long would
it takes for a 40.0 g sample to decay down to 1.25 g?
Fe-61 has a half-life of 6.00 min. Of a 100.0 mg sample, how much will remain after 18.0 min?